Valve-lifter.



W'. E. REYNOLDS.

VALVE LIFTER. APPLICATION FILED DEC. 30, 1915.

1,223,421 Patented Apr. 24, 1917. I

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VALVE-LIFTER.

To all whom it may concern:

Be it known that I, lVAL'rER E. REYNOLDS, a citizen of the United States, residing at Kansas City, in the county of Jackson'and State of Missouri, have invented certain new and useful Improvements in Valve-Lifters, of which the following is a specification.

This invention relates to puppet valve lifters such as used on internal combustion e11- gines and the like andhas for its object to produce a device of thischaracter which opcrates efiiciently and is of simple, strong, durable and inexpensive construction.

lVith these objects in view,-the invention consists in certain novel and peculiar features of construction and combinations of parts as hereinafter described and claimed, and in order that it may be fully understood reference is to be-had to the accompanying drawing,in which I Figure 1, is a vertical section showing a part of the puppet valve mechanism of an internal combustion engine, and a lifter embodying my invention applied in operative position to such mechanism.

Fig. 2, is a plan view of the lifter in operative position as indicated by dotted lines in Fig. 1.

In the said drawing,'1 is abar rigid with the engine casing and provided in line with each valve with a conical boss or extension 2 and extending slidingly through said bar and each extension is a pin 3 adapted for actuation by the customary cam, not shown, to open the valve by pushing upward against the lower end of the valve stem 4. The valve is held yieldingly seated normally by the surrounding coiled spring 5, bearing at its 1 upper end against, an unyielding portion of the engine, and at its lower end upon the.

grooved washer 6 fitting slidingly on the stem. When the valve is in operative condition the spring is compressed and the washer rests upon a cotter, not shown, extending through an opening 7 in the stem of the valve.

The lifter is constructed as follows: 8 is a block throughwhich loosely extends bolt 9. The bolt is provided at its front end with a wedge-shaped head. 10 and rearward of the block 8 is engaged by an adjusting nut 11.

The lower member or arm of the lifter comprises a pair of parallel bars 12 pivoted at their rear ends to the lower end ofblock 8 and adapted to hear at their free ends upon the bar 1 and said bars 12 are con- Specification of Letters Patent.

means of my valve lifter is to Patented Apr. 24, 1917.

Application filed. December 30, 1915. Serial No. 69,354.

nected by a plurality of cross pins 18 upon which are mounted sleeves 14 to hold the bars 12 spaced apart. One of the sleeves constitutes a roller engaged by the lower side of'the wedge-shaped head 10. At their front ends the bars 12 are bent outwardly to dispose such ends a suflicient distance apart to receive boss 2 between them as indicated by Fig. 2. The other member or arm of the device consistsof a pair of parallel bars 15 pivoted at their rear ends to the upper end of block 8, and said bars are connected by a cross pin 16 uponwhich is mounted a spacing sleeve 17 constituting a roller for engagement with the upper edge is the stem 18 of a forked cup 19, the bifurcation of the same being sufliciently large to receive the boss 2. The cup is adapted to receive the washer 6, and its bifurcation is narrower than the diameter of the washer so that it is necessary to engage the cup with the washer by placing it under the latter and then moving it upward or by dropping the washer into the cup.

With the forked cup proportioned as explained'with respect to the washer, that is to say extending around the washer, a distance more than one hundred and eighty degrees, it will be apparent that the cup cannot shift laterally under the washer when applying pressure thereon preliminary to the insertion or removal of the cotter pin through opening 7.

The operation of tensioning the spring by place the lifter in the position shown by full lines, Fig. 1, and then turn wing nut 11 in the proper direction to draw the wedge headed bolt rearward, this operation resulting in swinging the upper arm or lever 15 upward. In this upward movement the cup engages the washer 6 and raises the same against the resistance of spring 5 until the washer is above the opening 7 when a cotter pin can he slipped through said opening to retain the washer in the position to which it has been adjusted, the cotterbeing of course preferably shorter than the bifurcation of the lifter so that the upper arm orlever of the latter may be lowered without interference on the part of the pin regardless of whether the latter happens to extend transversely of the bifurcation or not, the said arm or lever of the lifter of course being relowered by re verse operation of the wing nut.

The operation of relaxing the spring preliminary to the removal of the valve for any reason, is as follows: The lifter is placed in position as explained and the Wing nut manipulated to raise the washer until the cotter pin can be readily removed. The wing nut operation is then reversed and the spring expands and maintains the washer in the cup until the former encounters the upper end of the boss. Manipulation of the wing nut is then continued until the cup is withdrawn from the washer and then the lifter can be removed.

In the operations described it is obvious that there is no chance of slidable movement of the lifter with respect to the washer when the latter is in the cup and that consequently the operation can be performed easily and expeditiously.

From the above description it will be ap parent that I have produced a valve lifter possessing the features of advantage enumerated as desirable in the statement of the object of the invention, and I wish it to be understood that While I have illustrated and described what now appears to me to be the preferred form of the invention, I reserve the right to make all changes falling within the spirit and scope of the appended claim.

I claim:

A valve lifter, comprising a block, an arm comprising a pair of bars pivoted at their ends to the lower end of said block, a plurality of cross pins connecting said bars be tween their ends, sleeves journaled on said pins between said bars, a second arm comprising a pair of bars pivotally connected at their rear ends to the upper end of said block and suitably spaced apart, a cross pin connecting said bars vertically above the rearmost pin connecting the first-named pair of bars, a spacing sleeve mounted on said cross pin of the second pair of bars, a bolt extending loosely through said block between said arms and provided with a rearwardly tapering head or wedge projecting between the bars of said pair of arms, a nut engagingthe bolt and the rear side of said block and adapted when screwed upon the bolt to effect rearward movement of the latter and thereby cause the tapering head or wedge of the same to engage the sleeves of the pins lying in the same vertical plane, and a forked cup provided with a rearwardly projecting stern secured to and between the front ends of the bars of said second arm, the walls of said cup tapering downward and inward at their inner sides and converging at their front ends, the front ends of the bars of the first-named arm diverging forwardly to provide a forked end for said arm below the said cup.

In testimony whereof, I afix my signature, in the presence of two witnesses.

WALTER E. REYNOLDS. Witnesses:

H. C. RODGERS, G. Y. THORPE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

